I'd like to disable my laptop monitor at startup (when an external monitor is connected), but make it available in X.
By default, my boot looks like :
* Grub2 displays only on my external monitor (at maximum resolution)
* Kernel displays only on my external monitor (maximum resolution)
* udev (I think) is started and turns on my laptop screen. Then I get the same display cloned on both my monitors, at laptop resolution (leaving me with a small resolution on my external monitor).
I can disable the laptop monitor by setting
in /etc/default/grub, which is perfect, except I cannot use my laptop screen in X anymore (it is shown as disconnected by xrandr). And I suspect I can't see anything if I disconnect my external monitor (which I do frequently).
I've seen other people with the same problem (especially http://www.linuxquestions.org/questions … n-806714/), but no answer.
I'm using an early KMS start with the intel driver (i915), with Kernel 3.5.6-1-ARCH.
Is there a way to reclaim a monitor after boot ? Or is there another way to disable a monitor at startup ?
Last edited by ThomasQ (2012-10-10 15:08:20)